WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B41C　PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES (photomechanical processes for producing printing surfaces G03F; photoelectrical processes for producing printing surfaces G03G)

B41C 1/00 Forme preparation

B41C 1/003 ・{the relief or intaglio pattern being obtained by imagewise deposition of a liquid, e.g. by an ink jet}

B41C 1/006 ・{the relief or intaglio pattern being obtained by abrasive means, e.g. by sandblasting}

B41C 1/02 ・Engraving; Heads therefor (recording on record carriers, heads therefor G11B)

B41C 1/025 ・・{characterised by means for the liquid etching of substrates for the manufacturing of relief or intaglio printing forms, already provided with resist pattern}

B41C 1/04 ・・using heads controlled by an electric information signal

B41C 1/045 ・・・Mechanical engraving heads

B41C 1/05 ・・・Heat-generating engraving heads, e.g. laser beam, electron beam

B41C 1/055 ・Thermographic processes for producing printing formes{e.g. with a thermal print head}(B41C 1/02 takes precedence; {fabrication of relief or intaglio plates by ablative recording with a laser beamB41C 1/05 ; production of lithographic formsB41C 1/10 ; producing of screen printing forms or stencilsB41C 1/14})

B41C 1/06 ・Transferring (B41C 1/10, B41C 1/18 take precedence)

B41C 1/08 ・by embossing, e.g. with a typewriter (typewriters adapted therefor B41J 3/38)

B41C 1/10 ・for lithographic printing; Master sheets for transferring a lithographic image to the forme {chemical or electrical pretreatment B41N 3/03}(neutralising or similar differentiation treatments of lithographic printing formes B41N 3/08)

B41C 1/1008 ・・{by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on the press exposure or on the press development, e.g. by the fountain of photolithographic materials}

B41C 1/1016 ・・・{characterised by structural details, e.g. protective layers, backcoat layers, several imaging layers (B41N 3/036 takes precedence)}

B41C 1/1025 ・・・{using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles}

B41C 1/1033 ・・・{by laser or spark ablation}

B41C 1/1041 ・・{by modification of the lithographic properties without removal or addition of material, e.g. by the mere generation of a lithographic pattern}

B41C 1/105 ・・{by electrocoagulation, by electro-adhesion or by electro-releasing of material, e.g. a liquid from a gel}

B41C 1/1058 ・・{by providing a magnetic pattern, a ferroelectric pattern or a semiconductive pattern, e.g. by electrophotography}

B41C 1/1066 ・・{by spraying with powders, by using a nozzle, e.g. an ink jet system, by fusing a previously coated powder, e.g. with a laser}

B41C 1/1075 ・・{Mechanical aspects of on-press plate preparation (B41C 1/1008 to B41C 1/1066 take precedence)}

B41C 1/1083 ・・{Mechanical aspects of off-press plate preparation (B41C 1/1008 to B41C 1/1066 take precedence)}

B41C 1/1091 ・・{by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor}

B41C 1/12 ・Multicolour formes

B41C 1/14 ・for stencil-printing or silk-screen printing

B41C 1/141 ・・{by cutting or perforation with mechanical means; Electrical spark cutting}

B41C 1/142 ・・{using a galvanic or electroless metal deposition processing step}

B41C 1/144 ・・{by perforation using a thermal head}

B41C 1/145 ・・{by perforation using an energetic radiation beam, e.g. a laser}

B41C 1/147 ・・{by imagewise deposition of a liquid, e.g. from an ink jet; Chemical perforation by the hardening or solubilizing of the ink impervious coating or sheet}

B41C 1/148 ・・{by a traditional thermographic exposure using the heat- or light- absorbing properties of the pattern on the original, e.g. by using a flash}

B41C 1/16 ・Formes with areas rendered ink-resistant by covering with an amalgam; Printing plates for amalgam printing

B41C 1/18 ・Curved printing formes or printing cylinders {(B41C 1/10, B41C 1/14 take precedence)}

B41C 1/182 ・・{Sleeves; Endless belts}

B41C 1/184 ・・{by transfer of the design to the cylinder, e.g. from a lithographic printing plate; by drawing the pattern on the cylinder; by direct cutting of the pattern on the cylinder}

B41C 1/186 ・・{by casting}

B41C 1/188 ・・{characterised by means for liquid etching of cylinders already provided with resist pattern}

B41C 3/00 Reproduction or duplicating of printing formes

B41C 3/02 ・Stereotyping (casting stereotype plates B41D 3/00)

B41C 3/04 ・to produce rubber printing blocks

B41C 3/06 ・to produce printing blocks from plastics

B41C 3/08 ・Electrotyping; Application of backing layers thereon

B41C 2201/00 Location, type or constituents of the non-imaging layers in lithographic printing formes

B41C 2201/02 ・Cover layers; Protective layers

B41C 2201/04 ・Intermediate layers

B41C 2201/06 ・Backcoats; Back layers

B41C 2201/10 ・characterised by inorganic compounds, e.g. pigments

B41C 2201/12 ・characterised by non-macromolecular organic compounds

B41C 2201/14 ・characterised by macromolecular organic compounds, e.g. binder, adhesives

B41C 2210/00 Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation

B41C 2210/02 ・Positive working, i.e. the exposed (imaged) areas are removed

B41C 2210/04 ・Negative working, i.e. the non-exposed (non-imaged) areas are removed

B41C 2210/06 ・Developable by an alkaline solution

B41C 2210/08 ・Developable by water or the fountain solution

B41C 2210/10 ・Developable by an acidic solution

B41C 2210/12 ・Developable by an organic solution

B41C 2210/14 ・Multiple imaging layers

B41C 2210/20 ・characterised by inorganic additives, e.g. pigments, salts

B41C 2210/22 ・characterised by organic non-macromolecular additives, e.g. dyes, UV-absorbers, plasticisers

B41C 2210/24 ・characterised by a macromolecular compound or binder obtained by reactions involving carbon-to-carbon unsaturated bonds, e.g. acrylics, vinyl polymers

B41C 2210/26 ・characterised by a macromolecular compound or binder obtained by reactions not involving carbon-to-carbon unsaturated bonds

B41C 2210/262 ・・Phenolic condensation polymers, e.g. novolacs, resols

B41C 2210/264 ・・Polyesters; Polycarbonates

B41C 2210/266 ・・Polyurethanes; Polyureas